Door construction



Patented Aug. 24, 1926.

UNITED srA'rEs ALVIN c. eonnann, or new YORK, N. Y.

-, v i 'nooncoivsrnucrron.

Applioationfi led October 2 5, 1922. Serial No. 596,859.

This invention relates to metal doors and has for an object to provide a construction wherein the bottom and top rails, together with the body of the door, may be set up and secured together before the stiles are placed in position.

Another object of the invention is to provide a metal door wherein the ornamental beading is arranged to overlap at its juncture in such a manner as to present a neat joint and at the same time present sufficient metal to permit spot welding.

A further object is to provide a construction where each part is accessible for quick and secure assembly, allowing the use of welding machines for securing the ends of rails to the stile molds without the use of inside mandrels or other devices which hamper speed of production.

Another object of theinvention is to provide a construction where every operation can be performed with practical tools that are easy of upkeep. v

A further object is to provide a construc-v tion where the molding member acts as an ornament, also as an interlock between the stile and rail, and also as a splice plate under the joint between the endof therail and stile member, giving ample surface for welding and eliminating special notching and extra splice plates.

A further object is to provide an improved joint and connection between intersecting moldings with which an extremely rigid and strong attachment between themtersecting moldings may be obtained.

A further object is to provide an improved construction for accomplishing the above objects, which will be exceptionally strong, rigid, durable and relatively inexpensive. 1

Various other objects and advantages will appear from the description of an embodiment of the invention and the novel features will be particularly pointed outhereinafter in claims. 1

In the accompanying drawings Figure 1 is a fragmentary plan view of one corner of a door as the same will appear when completed. 1 j a Figure 2 is a fragmentary'sectionalview through Figurefll approximately on line 2-2. 1 1

Figure 3 is a sectional view through Fig: ure 1 approximately on line Figure 1 is a view similar to Figure lbut showing the parts-broken away for illustratl ing'how the vertical molding or trimming strip extends into the rail and stile;

Figure 5 is a plan 'view of the vertical molding or trimming strip' at the point en gaged by the horizontal trimming strip, the

same showing the slit andbe'nt structure. Flgure '8 1s aplanfvlew of oneend of the horlzontalmoldmg as 1t appears lmm'ediately before it is fitted against the molding 7 shown in Figure 5.

Figure 7 is an enlarged sectional view taken approximately onl1ne'7'-7 of Fig,- ure 3. r T

' Figure 8 a view' similarjto Figure? but 3 showing the entlre molding.

Figure 9. is a fragmentary perspective view'showing the interiorarrangement of the vertical and horizontal moldings attheir point of connection. V V

Figure 10 is 'a detail fragmentary" sectional view through Figure 4 approximately on line 1010. it 7 Fi'gurell is a' perspective view showing the same corner'illustrated inFigure 1 but illustrating the arrangement whereby the stile may he slid into place after the other parts have been secured together. i

I Figure 12 is 'a' fragmentary perspective view of the vertical 'st-ile'showing the slit and bent section illustrated in Figure 5.

l Referring to the accompanying drawings by numeral, 15 is a panel formed withacen tral body of asbestos or othervdesired material and facing sheets of metal whereby the panel is of the fireproof type. This panel is designed to fit into the panel groove 16 of the vertical molding ortrimming strip 17 and also'ofthe horizontal molding or trimming" strip 18. In the drawing, part of these two molding strips have been shown but it will be fevident that for each panel there willbe two vertical molding strips 17 and two horizontal molding strips 18 and that there may be as'many panels in a .7

given door as desired; j

- The moldings at their intersection may have a joint of the type known as a cope joint, which will allow one of the moldings to "extend pastthe other; 1 If" a complete mitre joint were'used, it would be impossible to have one of the moldings extend beyond the-other. lWhere'a part of the faces of the molding are curved or inclinedfiit is difficult to form a satisfactory complete cope joint. Preferably, in order'toobtain the ad- The end of such a molding is shown in Fig.

6 -in w1hich-two shouldered portions are connected bya diagonal mitre edge27. In the other molding striplwhich extends beyond the intersection, the curved or inclined surface is provided with amitre slit 25, extending diagonallyor obliquely of the molding so as to form an edge 28 which is the component of the mitred edge 27 of the other molding strip. The portion 26 of the sur face of the molding with the mitre slit, bordering upon the slit and where covered by the curved or inclined surfaces ofthe .intersecting strip is struck inwardly by an amount, at least equal to the thickness of the metal .of which themolding is made, so as to allow the two intersecting inclined or curved surfaces to abut edge to edge, the cut "off mitred edge 27 of one molding strip abutting and fitting closely against themitred edge 28 of the slit 25. The overlapping portions of the intersecting moldings may be spot weld ed or otherwise secured together and form a strong andtight connection between the moldings, but where, as in a door, the moldings are along the edges of intersecting rails-and stiles, the molding which passes under or throughthe other is preferably extended into the adjoining'rail or stile and anchored thereto in any suitable I manner 1 such as by spot welding.

The particular shape in cross section, of these moldings is illustrated in Figures 2, 8 and 12 wherein it will be" seen that there is provided, not only longitudinally arranged grooves 16, but grooves 19 and 20 provided by having the edges turned over. These grooves areadaptedtoreceive themturned flanges 21 and 22 of the various'rails 23 and the respective stiles 24 whereby the 1 rails may he slid into ;position and also the stiles slid into position.

After the moldings have been properlypositioned and the panels 15 arranged therein, the various rails 23-are slid intogpositionand then spot welded to the vertical molding 17 at any desired number ofpoints 29; preferably several'points between the molding 18 and theopposite edge of the rail. This arrangement; leaves the grooved. portions 19 and 20 of the molding 17 projecting beyond the rails' 23 so-that the respective stiles 24 may be slid into position, and if desired,

if desired, areslid 'into position from the edge of the door and there held in position by friction or by spot welding. The spot welding of the plates 31 consists of only a few spots as there is no appreciable strain on this member. Preferably, the top and bottom ends of the stiles are cut off straight while the bottomedges of thebottom rails and the top edges-of the top=rails are bent over so as to present flanges as indicated in Figures 2 and 11 for receiving the finishing plate 31, said finishing plate, however, ex tending entirely across the bottom of the respective stiles to which it is spot welded in any desired manner. The stiles may be merely slid into place as above statedand held by a single spot weld though preferably they are pressed together after correctly slid into position and then provided with a single spot weld 30 or if desired with a number of spot weldings. In orderto do thisa mandrel is forced longitudinally into the 1nolding17, said mandrel fitting said molding and then a press is used which presses down on top of the stile and in that way presses both the top "andbottom flanges 20 and 21 atthe same time. It will be understood that the man.- drel completely fills the molding 17 or. at least extends from the top flange 22 to the bottomflange 21 ,as illustrated in Figure 3 so that the pressureofthe top of the structure Willbe communicated to the bottom in order that both edges of-the-stile may be rigidly .pressed' into position.

lVhat I claim is: I 1. In a metal door, a vertical stile part and a horizontal rail part meeting at an angle and inthe same plane, a molding strip running along that edge of one of the parts against which the other part abuts andextending into and secured to said other part, and a molding strip running along the edge of the said other part and intersecting the first named strip in a partial cope and par-' tial mitre joint to form an angularcontinuation thereof. 7' 2. In ametal' door, a vertical stile part and a horizontal rail part meeting at an an gle and in thesame plane, a molding strip running along that edge of one of the parts against which the other part abuts and 8X- tending into and secured to said other part, andamolding strip running along the edge of the said other part and intersecting the first named strip in a partial cope ancLpartial mitre'joint, the portion of the face of i the first n'amedstrip along the mitre joint being struck inwardly to clear the overlap ping portion of the second strip.

3. In a metal door, a vertical. stile partand a hor-i-zontal rail part meeting at an angle and in the same plane, a molding strip running along that edge of one of the parts against which the other part abuts and extending into and secured to said other part and a molding strip running along the edge of the said other part and intersecting the first named strip in a partial cope and partial lnitre joint, the face of the first strip along the niitre joint being slit and the edgebordering the slit and beneath the second named strip being struck inwardly to clear the overlapping portion 01 said second strip.

4t. In a metal door of the character described, a vertical molding strip extending from near the top to near the bottom of the door provided with diagonal slits at spaced intervals, a horizontal molding strip formed with a diagonally arranged end fitting into one of said slits, top and bottom rails overlapping the top and bot-tom ends of said vertical molding strip, said rails being spot welded to said molding strip, and a sliding stile arranged on said vertical molding strip, said stile being capable of being placed in position after the top and bottom rails have been welded to said vertical molding,

5. In a metal door of the character described, a bottom rail, a horizontal molding strip carried by said bottom rail formed with a cham'fered end and a vertical molding strip formed with a diagonally arranged slot and the metal adjacent the slot pressed inwardly so that the chainfered end of the horizontal molding strip may fit against the slitted portion of the vertical molding strip with the outer surfaces flush, said vertical molding strip extending into said rail, said entending portion being spot welded to said rail.

6. In ametal door of the character described, a panel, a horizontal molding strip for said panel, a vertical molding strip for said panel extending beyond the horizontal molding strip and forming an end projection, a rail carried by said horizontal molding strip overlapping part of said projection said vertical molding strip being provided with a stile guiding groove extending longitudinally thereof, and astile slidably mounted in said groove, said stile being capable of connection with said extension after the same has been slid into correct position.

7. In a sheet metal construction, two sheet metal rnoldings intersecting in the same plane and at an angle to one another, the curved and inclined intersecting surfaces being mitred and the other surfaces having a cope joint, the port-ion of one of the Initred surfaces along the initre and covered by the overlying corresponding surface. of the other molding being depressed to allow of a flush fit of the mitred surfaces.

ALVIN o. GODDARD. I 

